Consider the following:

$\displaystyle 7/x^-^5^/^6$

To express the above with a positive index i.e. to make the the exponent -5/6 positive, we need to do the reciprocal which will be

$\displaystyle 1/7/x^-^5^/^6$

which comes to

$\displaystyle x^5^/^6/7$

But the correct answer is

$\displaystyle 7x^5^/^6$

Why?

Thanks,

Ron